Check the listing for details. CCJH 4-20FT Sliding Barn Door Hardware Basic Black Roller Kit Single/Double Door. Color: Black, Condition: New. Listed at 67.99 USD. ABOUT US: CCJH is a professional manufacturer, With 10 years experience in designing and manufacturing barn door hardware, now we have 40 hanger styles and 4FT-20FT track sizes(full size) to meet your different needs. All of our products comply with strict quality control and advanced technology makes CCJH Sliding Barn Door Hardware more reliable. SPECIFICATIONS: Material: Carbon Steel Door weight capacity: 220lbs Sliding Length: 4ft-16ft for your choose The top of the Doors to the ceiling : Min distance is 8.7" Suitable Door Panel Thickness: 1 1/4" to 1 7/8 inch WHY CHOOSE US? 1)Adjustable Roller hanger screws（from 3cm to 5cm), You can adjust the screw to the most suitable thickness for your door 2)Rubber accessoriers & Spring door stops, has buffering effect when sliding door, reduce noise Packing Include For Single Door 1) 2 x Rollers 2) Wall Hanger Set (1 rail hole need 1 set) 3) 2 x Door Stops 4) 4 x Adjustable roller screws 5) 2 x anti-jump blocks 6) 1 x floor guide 7) Pre-Drilled Spliced rails Note: Only the sliding door kit for sale, door is not include For Double Door 1) 4 x Rollers 2) Wall Hanger Set (1 rail hole need 1 set) 3) 4 x Door Stops 4) 8 x Adjustable roller screws 5) 4 x anti-jump blocks 6) 2 x floor guide 7) Pre-Drilled Spliced rails Note: Only the sliding door kit for sale, door is not include How to choose track size 1) Single Door Min Track Size= 2 × Single Door panel Width 2) Double Door Min Track Size= 4 × Single Door panel Width